<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:h="http://xmlns.jcp.org/jsf/html"
      xmlns:f="http://xmlns.jcp.org/jsf/core"
      xmlns:p="http://primefaces.org/ui">

<f:view contentType="text/html;charset=UTF-8" encoding="UTF-8">
    <h:head>

    </h:head>

    <h:body>

        <h:form id="form">
            <p:messages id="msgs" showDetail="true">
                <p:autoUpdate />
            </p:messages>

            <p:dialog header="Modal Dialog (visible)" id="dlg" widgetVar="dlg" modal="true" height="100" closeable="true" visible="true">
                Hello I should be visible immediately on page load!
            </p:dialog>
        </h:form>

    </h:body>
</f:view>

</html>
